Mason Materials Conditional Use/Surface Mining Permits and Reclamation Plan

2 Documents in Project


SCH Number
Lead Agency
Humboldt County
Document Title
Mason Materials Conditional Use/Surface Mining Permits and Reclamation Plan
Document Type
MND - Mitigated Negative Declaration
Present Land Use
Timber Production

Document Description
The project involves renewal of, and modification to, Conditional Use/Surface Mining Permits and Reclamation Plan for continued mining operations on the quarry site known as the Mason Quarry. The Mason Quarry was originally developed in the 1950's for construction of Old Chezem Logging Road to provide access for the upper Redwood Creek Valley, and has been mined thereafter for the maintenance of Old Chezem Logging Road and County and State roads and highways. The County approved permits for existing operations in 1991 and allowed for the total extraction volume of 200,000 cubic yards of material over a 15-year period on a 5-acre portion of APN 316-163-02. A Conditional Negative Declaration was adopted with the project approval. the current project proposes modification to existing operations: 1) an increase in the annual extraction volume to 65,000 cubic yards for the 15-year permit term, 2) the option of blasting (although blasting has not occurred in the past and it is not anticipated that blasting will be necessary in the future, and 3) an increase in acreage to an approximate 10 acres to allow for possible expansion of the quarry on the area adjacent to the site that has been cleared of trees as part of a Cal Fire-approved "Less than 3-Acre Conversion Exemption", an exemption that is grated to a landowner one time per contiguous ownership. If approved, the permit will expire June 21, 2021.

Contact Information
Anita Punla
Humboldt County Community Dev. Dept
3015 H Street
Eureka, CA 95501

Phone : (707) 268-3727


Cross Streets
State Highway 299 and Old Chezem Road
Parcel #
State Highways
Hwy 299
Redwood Creek
Other Location Info
Upper Redwood Creek

Notice of Completion

Review Period Start
Review Period End
Development Type
Industrial Mining (Greywacke Sandst Mineral)
Local Action
Other Action Other Action: Surface Mining
Project Issues
Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Drainage/Absorption Forest Land/Fire Hazard Geologic/Seismic Minerals Noise Soil Erosion/Compaction/Grading Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Water Supply Wetland/Riparian
Reviewing Agencies
Air Resources Board, Major Industrial Projects Cal Fire California Department of Parks and Recreation California Highway Patrol Caltrans, District 1 Department of Conservation Department of Fish and Wildlife, Region 1E Department of Toxic Substances Control Department of Water Resources Native American Heritage Commission Regional Water Quality Control Board, Region 1 Resources Agency Resources, Recycling and Recovery State Lands Commission
Download CSV New Search